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Returning multiple objects in an R function [duplicate]
How can I return multiple objects in an R function? In Java, I would make a Class, maybe Person which has some private variables and encapsulates, maybe, height , age , etc.
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What is the meaning of the term “thread-safe”?
...deadlocks. Even something simple like calling System.exit() somewhere in a java thread makes that code not thread safe.
– Ingo
Feb 7 '13 at 11:05
2
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The term “Context” in programming? [closed]
...and a frequently used word is "context" in classes. Like ServletContext (Java), Activity (Android), Service (Java, Android), NSManagedContext (Objective-C, iOS).
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What is the significance of load factor in HashMap?
...has two important properties: size and load factor . I went through the Java documentation and it says 0.75f is the initial load factor. But I can't find the actual use of it.
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Android Split string
...r ways to do it. For instance, you can use the StringTokenizer class (from java.util):
StringTokenizer tokens = new StringTokenizer(currentString, ":");
String first = tokens.nextToken();// this will contain "Fruit"
String second = tokens.nextToken();// this will contain " they taste good"
// in th...
How do I convert a git repository to mercurial?
I've been developing a java application using git as source code repository. I'd like to share the project with other java developers and hg seems to be most used by them.
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Regex for quoted string with escaping quotes
...\\.)*"/
Works in The Regex Coach and PCRE Workbench.
Example of test in JavaScript:
var s = ' function(){ return " Is big \\"problem\\", \\no? "; }';
var m = s.match(/"(?:[^"\\]|\\.)*"/);
if (m != null)
alert(m);
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Proper usage of Optional.ifPresent()
... am trying to understand the ifPresent() method of the Optional API in Java 8.
5 Answers
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What is the source code of the “this” module doing?
...f the module, this, is also part of the joke because other languages (e.g. Java) use this similar to how Python uses self. Typing import this looks just as pointless as typing import java.self;.
– Luc
Jun 16 '16 at 21:57
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Get first and last day of month using threeten, LocalDate
...rt a solution that matches closely to business requirements
import static java.time.temporal.TemporalAdjusters.*;
LocalDate initial = LocalDate.of(2014, 2, 13);
LocalDate start = initial.with(firstDayOfMonth());
LocalDate end = initial.with(lastDayOfMonth());
However, Jon's solutions are also fi...